PSY 301 Lecture Notes - Lecture 14: Dependent And Independent Variables, Control Variable, Random Assignment

• School: University of Oregon
• Department: Psychology
• Course: PSY 301
• Professor: Dudukovic

Document Summary

Experiments include at least one manipulated variable and at least one measured variable. Independent variable (iv): manipulated by the researcher. Conditions: levels of the independent variable; also known as comparison groups. Control variable: any variable that a researcher holds constant. How long a participant is given to complete a task. How long a participant takes to complete a task. Dose of a drug a participant is given. Level of test participants receive: easy or difficult. Level of test participants choose to take: easy or difficult. Demeanor of the experimenter: friendly or stern. Spacing of study sessions matters for long-term retention . Type of processing task given: rhyming words, number of letters, capital letters. Each person only did one independent variable. Also known as between-subjects or between-groups design. Different groups of participants are given different levels of the iv. Each participant is randomly assigned to a regular desk, Two types standing desk, or treadmill desk.